plaster for masonry wall to be tiled?

Legacy_user

I've got a new stove installed, the fireplace was opened out and then blocked back up so I want to tile over the new block... what plaster should I be using as a base, I've got some ready mixed joint stuff but thinking I need something that will key better to the block...
any tips??

cheers

andyhop

Use a cement render. If the wall just needs a light skim use a rapid setting powdered tile adhesive

If you choose to plaster you will need to skim with multi after bonding . Most of the backing plasters are not suitable to be tiled onto if your read gyprocs guidelines

System

hadn't thought of cement tbh - what was on it previously was tiles on adhesive on plaster, not sure which plaster - but was just going to do the same again